multiple-select-query | 易学教程

How to identify the query that caused the error using mysqli_multi_query?

阅读更多关于 How to identify the query that caused the error using mysqli_multi_query?

问题 Using a example from elsewhere on SO to better catch 'hiding' errors. While the code below will catch and return an error, is it possible to improve this to report for which query the error occurred? With the code below, the output is: Columns: 18 Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FRO inventory' at line 1 Code being tested: $query = "SELECT * FROM orders WHERE location = 'IN' ORDER BY

Best way to combine multiple advanced mysql select queries

阅读更多关于 Best way to combine multiple advanced mysql select queries

问题 I have multiple select statements from different tables on the same database. I was using multiple, separate queries then loading to my array and sorting (again, after ordering in query). I would like to combine into one statement to speed up results and make it easier to "load more" (see bottom). Each query uses SELECT, LEFT JOIN, WHERE and ORDER BY commands which are not the same for each table. I may not need order by in each statement, but I want the end result, ultimately, to be ordered

How can I make multiple select statements on the same table?

阅读更多关于 How can I make multiple select statements on the same table?

问题 I have a table that stores some student work info. I need to select the hours based on the studentID and the quarter ID. Here is what I have: SELECT (SELECT hours FROM clinicalStudents WHERE quarterID='201101' and studentID='$studentID') as q1, (SELECT hours FROM clinicalStudents WHERE quarterID='201102' and studentID='$studentID') as q2, (SELECT hours FROM clinicalStudents WHERE quarterID='201103' and studentID='$studentID') as q3, (SELECT hours FROM clinicalStudents WHERE quarterID='201104'

Selecting Multiple Options in Selection Boxes and Getting Results From Database?

阅读更多关于 Selecting Multiple Options in Selection Boxes and Getting Results From Database?

问题 I have made a webpage for a school project where I have a series of selection boxes (some are independent and some are depended on another) to make selections and then apply filter to make a query. It is still in test-mode and working fine for single selections. You can find the webpage here: http://gorevler.awardspace.biz/realdeal03.html For example, when I select Europe from Region, Austria from Country, Plastics from Sector, Plastic Raw Materials from Sub-Sector and Polybutylene from

The multi-part identifier could not be bound

阅读更多关于 The multi-part identifier could not be bound

trying this select tblPersonalInfo.companyname, tblJobBudget.title,tblJobBudget.lastmodifiedby, tblJobAdv.advtitle, tblJobAdv.userId, tblApplication.advid, tblApplication.position from tblJobAdv inner join tblApplication ON tblJobAdv.advid = tblApplication.advid inner join tblPersonalInfo On tblJobBudget.lastmodifiedby = tblPersonalInfo.userid gives error Msg 4104, Level 16, State 1, Line 8 The multi-part identifier "tblJobBudget.lastmodifiedby" could not be bound. Msg 4104, Level 16, State 1, Line 2 The multi-part identifier "tblJobBudget.title" could not be bound. Msg 4104, Level 16, State 1

The multi-part identifier could not be bound

阅读更多关于 The multi-part identifier could not be bound

问题 trying this select tblPersonalInfo.companyname, tblJobBudget.title,tblJobBudget.lastmodifiedby, tblJobAdv.advtitle, tblJobAdv.userId, tblApplication.advid, tblApplication.position from tblJobAdv inner join tblApplication ON tblJobAdv.advid = tblApplication.advid inner join tblPersonalInfo On tblJobBudget.lastmodifiedby = tblPersonalInfo.userid gives error Msg 4104, Level 16, State 1, Line 8 The multi-part identifier "tblJobBudget.lastmodifiedby" could not be bound. Msg 4104, Level 16, State 1